An analytical investigation of pressure-driven flow and heat transfer of a Sisko fluid flowing through parallel plates with viscous dissipation

Sadhana ◽  
2020 ◽  
Vol 45 (1) ◽  
Author(s):  
Sumanta Chaudhuri ◽  
Sushil Kumar Rathore
Keyword(s):  
Heat Transfer ◽  
Viscous Dissipation ◽  
Analytical Investigation ◽  
Parallel Plates ◽  
Sisko Fluid ◽  
Flow And Heat Transfer ◽  
Pressure Driven Flow ◽  
Pressure Driven

Mixed Electroosmotic Pressure Driven Flow and Heat Transfer of Power Law Fluid in a Hydrophobic Microchannel

2017 ◽  
Author(s):  
Ainul Haque ◽  
Ameeya Kumar Nayak
Keyword(s):  
Heat Transfer ◽  
Power Law ◽  
Joule Heating ◽  
Scientific Data ◽  
Channel Height ◽  
Flow And Heat Transfer ◽  
Power Law Fluids ◽  
Hydrophobic Microchannel ◽  
Pressure Driven Flow ◽  
Pressure Driven

In this paper, a mathematical model has been developed to analyze the combined electroosmotic and pressure driven flow of power law fluids in a micro channel in the presence of Joule heating effects. The effects of Navier slip boundary condition and thermal radiation is examined for effective heat transfer in a hydrophobic microchannel. The analytical treatment has been performed for fluid flow and heat transfer effects in terms of flow governing parameters. This study highlights the effect of channel height to the electric double layer thickness and observed the flow variation due to heat transfer effect with the available scientific data. For a pure EOF, velocity slip have more significant role to get a maximum flow rate as expected. For both pseudo-plastic and dilatent fluids Nusselt number is decreased with the increment of the hydrophobic parameter and dimensionless pressure gradient where as increment in Joule heating effect enhance the heat transfer rate.

scholarly journals An analytical study on the entropy generation in flow of a generalized Newtonian fluid

2019 ◽  
Vol 23 (Suppl. 6) ◽  
pp. 1959-1969
Author(s):  
Yigit Aksoy ◽  
Necmi Gurkan ◽  
Ayse Aksoy ◽  
Derya Durgun ◽  
Ali Yurddas
Keyword(s):  
Heat Transfer ◽  
Viscous Friction ◽  
Analytical Investigation ◽  
Heat Fluxes ◽  
Variable Step Size ◽  
Parallel Plates ◽  
Step Size ◽  
Generalized Newtonian Fluid ◽  
Dissipation Term ◽  
Pressure Driven Flow

In this study, an analytical investigation on pressure driven flow of Powell-Eyring fluid is conducted to understand the irreversibilities due to heat transfer and viscous heating. The flow between infinitely long parallel plates is considered as fully developed and laminar with constant properties and subjected to symmetrical heat fluxes from solid boundaries. The internal heating due to viscous friction accompanies external heat transfer, that is, viscous dissipation term is to be involved in the energy equation. As a cross-check, accuracy of analytical solutions is confirmed by a predictor-corrector numerical scheme with variable step size.

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